| Gurnee to Montalegre | 3,943.20 mi (6,345.98 km) |
| Gurnee to Montemor-o-Novo | 4,035.67 mi (6,494.79 km) |
| Gurnee to Montemor-o-Velho | 3,960.46 mi (6,373.74 km) |
| Gurnee to Montijo | 4,002.98 mi (6,442.17 km) |
| Gurnee to Mortagua | 3,971.57 mi (6,391.63 km) |
| Gurnee to Moura | 4,089.76 mi (6,581.83 km) |
| Gurnee to Murtosa | 3,943.00 mi (6,345.64 km) |
| Gurnee to Nazare | 3,962.82 mi (6,377.54 km) |
| Gurnee to Nelas | 3,986.01 mi (6,414.86 km) |
| Gurnee to Obidos | 3,967.15 mi (6,384.51 km) |
| Gurnee to Odemira | 4,055.03 mi (6,525.94 km) |
| Gurnee to Odivelas | 3,986.25 mi (6,415.25 km) |
| Gurnee to Oeiras | 3,983.72 mi (6,411.19 km) |
| Gurnee to Olhao | 4,112.38 mi (6,618.23 km) |
| Gurnee to Oliveira de Azemeis | 3,946.46 mi (6,351.21 km) |
